Has someone posted that this is probably Hong Kong?
I was looking around for HKmaps. However, an Anon appears to have found it on their post 5-22 16:02 1509026. (No link to there from FR per rules.) Good picture Cf. with Q pics.
Bluff island, Basalt island, Town Island, High Resevoir.
https://upload.wikimedia.org/wikipedia/commons/6/68/Basalt_Island_Location.PNG
“The four best sights in Hong Kongs below-the-radar geopark and how to visit them
Rock formations created by volcanic explosions 140 million years ago created one of Hong Kong’s greatest natural attractions, yet hardly any tourists see it and not that many Hongkongers either....”
I do not know if the fact that these are a geo park has any significance.